fix: revert create new field kubelet_cmd_flags which can replace kubelet_flags

[awesomenix]

Reverts #7771

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Build	Format	Lint	Breaking	Updated (UTC)
✅ passed	✅ passed	✅ passed	❌ failed (2)	Feb 4, 2026, 2:58 AM

[Copilot]

Pull request overview

This pull request reverts PR #7771, which had introduced a new kubelet_cmd_flags field to the KubeletConfig protobuf message. The revert removes this field and restores the codebase to use only the original kubelet_flags map-based approach.

Changes:

• Removed the kubelet_cmd_flags string field from the KubeletConfig protobuf message
• Updated generated protobuf Go code to reflect the field removal
• Simplified the getKubeletFlags helper function to only use the map-based kubelet_flags
• Updated tests to use KubeletFlags map instead of the now-removed KubeletCmdFlags string field
• Removed unused imports from test files

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
aks-node-controller/proto/aksnodeconfig/v1/kubelet_config.proto	Removed kubelet_cmd_flags field (field 9) from KubeletConfig message
aks-node-controller/pkg/gen/aksnodeconfig/v1/kubelet_config.pb.go	Auto-generated code updated to remove KubeletCmdFlags field and getter method
aks-node-controller/proto/README.md	Documentation updated to remove references to kubelet_cmd_flags
aks-node-controller/parser/parser_test.go	Test updated to use KubeletFlags map instead of KubeletCmdFlags string; removed unused imports
aks-node-controller/parser/helper_test.go	Test simplified to use inline map definition; removed unused imports and variables
aks-node-controller/parser/helper.go	Simplified getKubeletFlags function to only handle map-based flags
aks-node-controller/Makefile	Unrelated changes to platform specifications and branch reference